r 2. In this problem we will computel'estimate the denite integral f h1(:t:)dx is several ways. 1 7 3. Estimate / 111(3):!35 using 3 rectangles with left endpoints. Is this an overestimated)\" an under 1 estimate? 7 h. Estimate 1 ln(:u)dz using 3 rectangles using the midpoint method. 1 7 t; Compute f 111(3) (13 exactly, using the fundamental theorem of calculus. 1 \f1. The marginal profit in dollars on a type of cheese sold at a cheese store is given by the function P'( x} =x( SUXZ +30x), where x is the amount of cheese sold, in hundreds of pounds. a. If the profit from selling 200 pounds of cheese is $240, determine the profit function P( x}. b. W to find the profit from selling 300 pounds of cheese